Homologous series of regioregular alkylsubstituted oligothiophenes up to an 11-mer
作者:Jens Krömer、Peter Bäuerle
DOI:10.1016/s0040-4020(01)00254-x
日期:2001.4
A complete series of structurally well-defined butylated oligothiophenes up to an Il-mer was synthesized by a combination of aryl-aryl cross-coupling reactions and cyclization of 1,3-butadiyne precursors with sulfide anions. Palladium-catalyzed cross-coupling of halogenated thiophene units with trimethylsilylacetylene effectively yields ethynylated thiophenes which after deprotection are oxidatively coupled to the corresponding 1,3-butadiynes. (C) 2001 Published by Elsevier Science Ltd.